FL7930CMX

The FL7930 is an active Power Factor Correction (PFC) controller for low-to high-power lumens applications that operate in Critical Conduction Mode (CRM). It uses a voltage-mode PWM that compares an internal ramp signal with the error amplifier output to generate a MOSFET turn-off signal. Because the voltage-mode CRM PFC controller does not need rectified AC line voltage information, it saves the power loss of an input voltage sensing network necessary for a current-mode CRM PFC controller.
Features
• Additional PFC-Ready Function (FL7930C Only)
• Input-Voltage-Absent-Detection Circuit
• Maximum Switching Frequency Limitation
• Internal Soft-Start with Overshoot Prevention
• Internal Total Harmonic Distortion (THD) Optimizer
• Precise Adjustable Output Over-Voltage Protection
• Additional OVP Detection Pin (FL7930B Only)
• Open-Feedback Protection and Disable Function
• Zero-Current Detector
• 150µs Internal Startup Timer
• MOSFET Over-Current Protection (OCP)
• Under-Voltage Lockout with 3.5V Hysteresis
• Low Startup and Operating Current
• Totem-Pole Output with High State Clamp
• +500/-800mA Peak Gate Drive Current
• 8-Pin Small Outline Package (SOP)Applications
• Ballast
• General LED Lighting
• Industrial, Commercial, and Residential Fixtures
• Outdoor Lighting: Street, Roadway, Parking, Construction and Ornamental LED Lighting Fixtures